10 April, 2010

Dust mites and Bronchial Asthma in children

1) Dust mite live in every home. Nowadays, Japanese house is highly sealed
and less air-circulation. This environment is ideal for ticks and mite.

Dust mites (Dermatophagoides spp.) itself, the debris of dead mite and feces are

the trigger of allergic reaction in some children. The skin contact of Mite's allergen
induce allergic reaction in skin(=Atopic dernatitis) , and inhalation induce allergic
reaction of bronchi, resulting the narowing of air passage ------ wheezing in
Braonchial Asthma.----------
----------i)  frequently change the room air.
---------ii)  bed sheets, carpets are dried to exposure to sunlight in outdoors.
---------iii) The cheap vacuums cleaner is not good, because cheap filter do not 

-------------trap the debris or feces and go through the room.

Photo 1) Dust mites (Dermatophagoides spp.) :  


Photo 2) Dust mite (Dermatophagoides pteronyssinus): 

-----------One of the common mites living in house.
----------- size of this mite=0.25~0.4mm, Electron-microscopic image

Any questions:    write to Keiji Hagiwara, MD
---------------------------------Kami-Ube Pediatric Clinic, Ube 755-0097, Japan